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3 years ago

NO SILLY ANSWER, OR JUST DOING IT FOR THE POINTS!! WILL GIVE BRAINLEYEST

Mathematics

2 answers:

Paha777 [63]3 years ago

7 0

Answer:
9a/ -3a
Explanation:

FrozenT [24]3 years ago

4 0

Answer:

9a/ -3a

Step-by-step explanation:

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Please Find the distance between the two points rounding to the nearest tenth (if necessary).

Sphinxa [80]

Answer:

10.29 u

Step-by-step explanation:

Given :-

Two points (7,4) and (-2,9) is given to us.

And we need to find out the distance between the two points . So , here we can use the distance formula to find out the distance. As,

$:\implies$ D = √{(x2-x1)² + (y2-y1)²}

$:\implies$ D =√[ (7+2)² +(9-4)²]

$:\implies$ D =√[ 9² +5²]

$:\implies$ D =√[ 81 +25]

$:\implies$ D = 10.29

<h3>Hence the distance between the two points is 10.29 units .</h3>

8 0

3 years ago

Read 2 more answers

EXAMPLE 5 If F(x, y, z) = 4y2i + (8xy + 4e4z)j + 16ye4zk, find a function f such that ∇f = F. SOLUTION If there is such a functi

Valentin [98]

If there is such a scalar function f, then

$\dfrac{\partial f}{\partial x}=4y^2$

$\dfrac{\partial f}{\partial y}=8xy+4e^{4z}$

$\dfrac{\partial f}{\partial z}=16ye^{4z}$

Integrate both sides of the first equation with respect to x :

$f(x,y,z)=4xy^2+g(y,z)$

Differentiate both sides with respect to y :

$\dfrac{\partial f}{\partial y}=8xy+4e^{4z}=8xy+\dfrac{\partial g}{\partial y}$

$\implies\dfrac{\partial g}{\partial y}=4e^{4z}$

Integrate both sides with respect to y :

$g(y,z)=4ye^{4z}+h(z)$

Plug this into the equation above with f , then differentiate both sides with respect to z :

$f(x,y,z)=4xy^2+4ye^{4z}+h(z)$

$\dfrac{\partial f}{\partial z}=16ye^{4z}=16ye^{4z}+\dfrac{\mathrm dh}{\mathrm dz}$

$\implies\dfrac{\mathrm dh}{\mathrm dz}=0$

Integrate both sides with respect to z :

$h(z)=C$

So we end up with

$\boxed{f(x,y,z)=4xy^2+4ye^{4z}+C}$

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3 years ago

Find each rate and unit rate 420 miles in 7 hours

Anon25 [30]

the unit rate is 60 mph

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2 years ago

If you rolled a fair number cube 1-6, 12 times, about how many times would you expect to roll a 5 or a 6?

Sav [38]

Well it is definately not c haha. I would say 3 because it is a pretty even chance of getting three.

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3 years ago

What are the answers of these and if work is needed please explain? Thank you

wolverine [178]

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3 years ago